The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X20-10S is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 10 to 20 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X20-10S is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. Turning the R (M27x2.0) screw lets you dial the extend position down to 10 mm from the 20 mm maximum directly on the machine, avoiding part swaps during setup. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, delivering 3927 N push at 0.5 MPa.
This 100 mm bore unit packs massive thrust into a short riveted body that saves axial mounting depth where a round-body or profile cylinder will not fit. The -S suffix indicates a built-in piston magnet for AirTAC reed or electronic switches, and end-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X20-10S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 20 mm |
| Adjustable range | 10 – 20 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 male (B) |
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
The adjustment screw shortens the extend stroke by up to 10 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×20 | Maximum stroke length in mm. |
| -10 | Adjustable window (10/20/30/40/50/75/100 mm). |
| S / B | S = magnet; B = male-thread rod (both optional). |
Thread: PT standard. Related SDA-family variants: SDA (fixed stroke), SDAD (double rod), SSA/STA (single acting), SDAT (duplex), SDAW (duplex-end).
Dial in the exact 10-20 mm extend contact point on heavy press-fit tooling without machining new spacers, leveraging the 3927 N push to seat components.
Securely clamp large castings in tight automated cells where the short riveted body saves axial depth and the fixed NBR bumper absorbs the 200.2 kg vertical lift impact.
Rapidly adjust the extend stop for different product heights on high-mix assembly lines, using the built-in magnet to confirm the tuned end position.
Choosing this 100 mm bore yields a safe working load around 2356 N (about 60% of the 3927 N push at 0.5 MPa), with a vertical lift capacity near 200.2 kg using a 2:1 margin. If your application requires less force, sizing down to the SDAJ80 provides 2513.3 N push at 0.5 MPa, but since this is already the largest standard SDAJ bore, moving up requires a different body style. Confirm your requirements for the 20 mm stroke, 10 mm adjust window, PT3/8 port, built-in magnet, and female M18x1.5 rod-end thread.
Operators who need precise trial positioning or frequent changeovers benefit most from the on-site stop tuning. Remember that a plain SDAJ does not hold position or load when air is lost or the valve is centred; the fixed bumper only decelerates near the end and the adjuster is a mechanical stop, not a lock. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
This 100 mm bore double-acting cylinder provides 3927 N push and 3524.9 N pull at 0.5 MPa, 5497.8 N push and 4934.8 N pull at 0.7 MPa, with a theoretical maximum push of 801 kgf at 1.0 MPa. The external stop adjustment does not alter these force values.
The R (M27x2.0) screw shortens the extend stop by up to 10 mm, giving a usable extend range of 10-20 mm; retract remains full. The built-in -S magnet works with AirTAC reed or electronic solid-state switches for position sensing, while a fixed NBR bumper handles end-of-stroke deceleration.
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